1911 Magazines

The 1911 is one of the most popular handgun platforms ever created, and it relies on a solid mag. A reliable 1911 magazine makes all the difference; it feeds every round smoothly, from the first to the last. At The Mag Shack, you’ll find a wide selection of 1911 magazines for popular calibers such as .45 ACP, 9mm, 10mm, .38 Super, .40 S&W, .380 ACP, .22 LR, and others.

Choose from full-size (Government/Commander) and compact (Officer) mags from well-known brands, such as Wilson Combat, Mec-Gar, Chip McCormick, Kimber, Springfield Armory, Colt, Ruger, Ed Brown, ProMag, KCI, and Armscor. You will find options ranging from traditional 7-round GI-pattern magazines to modern 10-round and extended 1911 mags, all sourced from proven manufacturers.

Best 1911 Magazine Brands to Choose From

A 1911 is sensitive to magazine quality, which makes brand selection especially important. Feed lip geometry, follower design, spring strength, tube finish, and base pad construction all affect how the pistol runs.

Wilson Combat

Wilson Combat’s Elite Tactical Magazine (ETM) is widely regarded as one of the most reliable 1911 mags on the market. The ETM uses a one-piece stainless-steel body, a patented self-lubricating follower, and a redesigned spring that delivers consistent tension from a fully loaded magazine down to the last round. The Wilson Combat 1911 magazine is available in both .45 ACP (8-round) and 9mm (10-round) configurations, and it fits standard full-size and Commander-length 1911 frames. Wilson Combat also acquired Chip McCormick, so their catalog now includes the popular RPM (Railed Power Mag) line, which can sometimes be found at a more accessible price point.

Mec-Gar

Mec-Gar is the world’s largest OEM magazine manufacturer. They supply factory magazines for Kimber, Springfield Armory, Sig Sauer, Beretta, and many others. When you buy a factory Kimber or Springfield 1911 magazine, there is a strong chance it was made by Mec-Gar. Their own-brand Mec-Gar 1911 magazine models offer the same build quality at a lower price, making them one of the best values on the market. You’ll find them available in .45 ACP (from 7 to 11 round capacities) and 9mm configurations.

Chip McCormick (by Wilson Combat)

The Chip McCormick 1911 magazine was a staple in competitive shooting circles for decades before the brand was acquired by Wilson Combat. The Power Mag+ and Railed Power Mag (RPM) remain popular for their reliability and affordability. The RPM’s signature feature is its feed rails which provide an exceptionally strong and smooth feeding surface. . These are widely available in .45 ACP 8 and 10-round configurations.

Kimber, Springfield Armory, and Factory OEM Magazines

Kimber and Springfield Armory both offer factory-branded 1911 magazines for their respective pistol lines. Kimber 1911 magazines are a custom-made match for Kimber pistols and are available in full-size, compact, and caliber-specific versions. Springfield 1911 magazine options serve shooters who run Springfield Armory pistols, such as the Garrison, Ronin, TRP, EMP, and related models.

As noted above, both source their magazines from Mec-Gar in most cases, so the quality is consistent with the Mec-Gar standard. Springfield Armory also produces dedicated magazines for the Prodigy, their double-stack 2011-pattern pistol. These are NOT interchangeable with single-stack 1911 mags and should not be confused with them.

1911 Magazine Sizes: Full Size (Government/Commander) vs Compact (Officer)

Frame size matters when buying a 1911 mag. The common 1911 sizes include Government/ Commander, and Compact/Officer, and not all magazines fit all frames.

• Government (full-size, 5” barrel) and Commander (4.25” barrel) use the same magazine. The Government and Commander share identical grip frames and magazine wells, but the barrel and slide are shorter on the Commander. Any magazine made for a full-size Government 1911 will work in a Commander, and vice versa. This is the most important compatibility fact that 1911 buyers need to know.
• Officer / Compact (3.5” barrel): Officer-frame 1911s have a shorter grip and require a shorter magazine. A standard Government/Commander magazine will physically protrude from an Officer frame (it may still function, but it won’t be flush-fit). If you own an Officer-length 1911, make sure you are buying magazines specifically marked for that frame size.
• Flush-fit vs. extended basepads: A flush-fit magazine sits even with the bottom of the grip. Extended basepads add roughly 0.25-0.5 inches to the magazine body and typically add 1-2 extra rounds. Wilson Combat and Dawson Precision both offer aftermarket basepads that convert a 7-round .45 ACP magazine to an 8-round, or an 8-round to a 10-round, extended capacity.

1911 Magazine Calibers: .45 ACP, 9mm, 10mm, and More

The original 1911 design is closely tied to .45 ACP, and that caliber still dominates the category. A traditional 1911 .45 ACP magazine holds 7 rounds, while many modern designs hold 8 rounds through updated followers and spring systems. Extended .45 ACP magazines commonly hold 10 rounds, and some aftermarket options go higher for range use.

1911 9mm magazines have become very popular because 9mm offers lighter recoil, lower ammunition cost, and slightly higher capacity. Many full-size 9mm 1911 magazines hold 9 or 10 rounds. These magazines must be designed for 9mm because the cartridge shape, feed angle, and spacer requirements differ from .45 ACP.

1911 10mm magazines serve shooters who want more power for field use or hunting sidearms. 10mm 1911 pistols require dedicated magazines that can handle the longer cartridge and stronger cycling forces. Brands such as Kimber, Colt, Ruger, Springfield Armory, Mec-Gar, Remington, Wilson Combat, and Armscor are represented in this category.

Other options include .38 Super 1911 magazines, which remain popular with competition shooters, as well as .40 S&W, .22 LR, .22 WMR, and .380 ACP magazines for specific 1911-style pistols. Always match the magazine to the exact caliber marked on your firearm.

Extended and High-Capacity 1911 Magazines

An extended 1911 mag gives shooters extra capacity for range work, competition, and certain defensive setups. The most common extended option is the 1911 10-round magazine, especially in .45 ACP. These magazines extend below the grip and often include a base pad for easier handling.

For higher capacity, some models offer up tor 40 rounds. A 1911 extended magazine 15-round model, for example, can work well for range use when the buyer understands the added length and weight. Drum magazines can offer even more capacity, though they are usually best suited for recreational shooting rather than carry.

High capacity also highlights the difference between single-stack 1911s and double-stack or 2011-style pistols. A high-capacity 1911 magazine may refer to extended single-stack magazines or to double-stack platforms such as the Springfield Prodigy, Rock Island HC models, or 2011-pattern pistols. These magazines are not interchangeable with standard single-stack 1911 mags.

How to Choose the Right 1911 Magazine

Here’s a four-step guide that will help you pick the 1911 mag suitable for your needs:

1. Check your caliber. What’s your 1911 chambered in? .45 ACP, 9mm, 10mm, or .38 Super? That’s the first thing to check out. If you pick a magazine in the wrong caliber, you could run into safety problems.
2. Know your frame size. Government and Commander frames use the same mags, but Officer models use shorter ones. If you’re not sure which you have, look it up in your pistol’s manual or just measure the grip.
3. Decide on capacity. For everyday carry and concealment, flush-fit mags are the way to go. If you’re hitting the range or competing, a 1911 .45 ACP extended magazine or a 10-round option can reduce reload frequency. Just double-check your state laws for any limits on magazine capacity.
4. Pick your brand. Consider Wilson Combat for absolute reliability, Mec-Gar if you want good quality without spending too much, or Chip McCormick / RPM for something solid in the middle. Factory OEM magazines are great if you prefer a brand-matched magazine for your specific pistol.

The Mag Shack has all these brands and mag types in stock. If you’re unsure which one fits your 1911, our team can help you make the right choice.